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Air suspension centrifugal blower

A centrifugal blower and air suspension technology, which is applied in the field of centrifuges, can solve problems such as scratches, short life, and low number of starts and stops, and achieve the effects of improving variable efficiency, improving reliability, and reducing costs

Active Publication Date: 2021-01-15
益鑫能源科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing air-suspension centrifugal blowers generally have the following disadvantages: since the load-bearing capacity of the air-suspension bearing decreases sharply with the increase of the radial clearance, it is necessary to control a very small working clearance, which is easy to cause scratches, and Air suspension bearings have dry friction when they start and stop, so they can bear less number of starts and stops and have a short service life

Method used

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Embodiment Construction

[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] In describing the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom" etc. indicate an orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the machine or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention. It should be understood that the terms "first", "s...

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Abstract

The invention discloses an air suspension centrifugal blower. The air suspension centrifugal blower comprises a motor, a volute, an impeller, an impeller shaft, bearing rotating shafts, air suspensionradial bearings and air suspension thrust bearings. The front end and the rear end of a motor rotor are rotationally connected with the air suspension radial bearings through the bearing rotating shafts respectively. The bearing rotating shaft located at the front end of the motor is rotationally connected with the air suspension thrust bearing through a thrust disc, PVD coatings are arranged onthe friction faces of the bearing rotating shafts and the thrust disc, the friction coefficient of the PVD coatings is smaller than or equal to 0.1, and the thickness of the PVD coatings ranges from 2micrometers to 8 micrometers. PTFE coatings are arranged on the friction faces of the air suspension radial bearings and the air suspension thrust bearings, the friction coefficient of the PTFE coatings is smaller than or equal to 0.05, and the thickness of the PTFE coatings ranges from 0.02 mm to 0.05 mm. The air suspension centrifugal blower has the advantages of compact structure, high efficiency, long service life, good stability, high start-stop frequency, low motor temperature rise and the like.

Description

technical field [0001] The invention belongs to the technical field of centrifuges, in particular to an air suspension centrifugal blower. Background technique [0002] At present, compared with the Roots blower, the centrifugal blower has a wider range of choices in terms of boost pressure and flow parameters, and has the characteristics of high efficiency, low noise, and stable operation. Its application range covers petrochemical and chemical industries, metal smelting, thermal power generation, and cement manufacturing. Such as traditional heavy chemical industry and new environmental protection fields such as sewage treatment, waste heat recovery, desulfurization and denitrification. [0003] Traditional high- and low-speed centrifugal blowers are composed of blower head, lubricating oil system, cooling system, drive motor, speed regulating device, adjustment control system and electrical control system. The cost is high, and it is easy to cause leakage of lubricating ...

Claims

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Application Information

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IPC IPC(8): F04D17/16F04D25/06F04D29/42F04D29/44F04D29/28F04D29/30F04D29/057F04D29/02F04D29/58F04D29/66F04D29/70
CPCF04D17/16F04D25/06F04D29/023F04D29/057F04D29/282F04D29/30F04D29/4233F04D29/441F04D29/5806F04D29/582F04D29/662F04D29/668F04D29/703
Inventor 钟仁志袁军彭进项董欣
Owner 益鑫能源科技(上海)有限公司
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